dimitardanailov

Agenda

• Chapter 1: Introduction
• Chapter 2: IBM NodeServer Generator
• Chapter 3: Cleaning the house
• Chapter 4: TypeScript and routing-controllers
• Chapter 5: MongoDB and Mongoose
• Chapter 6: Nodejs Streams
• Chapter 7: Amazon S3 and why memory streams aren't a silver bullet ?
• Chapter 8: Mocha, chai and istanbul

dimitardanailov

// Routing Controllers Annotations
import { JsonController, Get, Controller, Param, Post } from "routing-controllers";
import { PetRepository } from "../repositories/PetRepository";
import { IPet } from "../interfaces/IPet";
import { Pet } from "../models/Pet";
import { Readable } from "stream";

@JsonController()
// Create a controller prefix for each end point
@Controller("/pets")

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@Get('/hello-world-streams')
async streams() {
  // Get Mongodb cursor
  const cursor = this.repository.getCursorToAllRecords();

  const promise = new Promise((resolve, reject) => {
    cursor.on('data', doc => {
      console.log(doc);
    });

dimitardanailov

// Routing Controllers Annotations
import { JsonController, Get, Controller, Param, Post } from "routing-controllers";
import { PetRepository } from "../repositories/PetRepository";
import { IPet } from "../interfaces/IPet";
import { Pet } from "../models/Pet";

@JsonController()
// Create a controller prefix for each end point
@Controller("/pets")
export class PetController {

dimitardanailov

import { Service } from "typedi";
import { Query } from "mongoose";
import { Pet } from "../models/Pet";

@Service()
export class PetRepository {

  async getRecords(): Promise <Pet> {
    /**
     * I'd like to get only fifty records and each record

dimitardanailov

import { mongoose } from "../database/config";
import { Document, Schema } from "mongoose";
import { IPet } from '../interfaces/IPet';
interface IPetModel extends IPet, Document {
  
}
const PetSchema: Schema = new Schema({
 'name': String,
 'age': Number,
 'createdAt': Date,

dimitardanailov

import express = require("express");

module.exports = (app) => {
  const router = express.Router();

  app.use("/swagger/api", express.static("./public/swagger.yaml"));
  app.use("/explorer", express.static("./public/swagger-ui"));
  app.use(router);
}

dimitardanailov

module.exports = (app) => {
  const router = require('express').Router();

  router.get('/', (req, res, next) => {
    res.json({ status: 'UP' });
  });

  app.use('/health', router);
}

dimitardanailov

import "reflect-metadata"; // this shim is required
import { createExpressServer, useContainer } from "routing-controllers";
import { Container } from "typedi";
import log4js = require('log4js');

require('appmetrics-dash').attach();
require('appmetrics-prometheus').attach();

const appName = require('./../package').name;
const logger = log4js.getLogger(appName);

dimitardanailov

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